Damper regulator



Aug. 2l,A 1923.

F; E. COLLINS DAMPER REGULATOR Filed Jan'.- 2e y1922 MTM/T012 l way.

i automatically as the sure to control Patented ug. 21, i923.

narran srerss vfewer artsen aerien' narines- REGULATOR.

Appnanonnid January 26,1922. seriai No. tenait). l

To all whom, t may concern: Y

Be it known that I, FRANCIS E. COLLINS,

and State ofPennsylvania, have invented new and useful lm )rovements 'in Damper Regulators, .of which fthe following is a specication. Y

My invention relates to anew and useful iiiiproveinentin a damper regulator, and has for its object toprovide asiinple and ef-V fective device of this characterfor opening and closing a damper `orv valve whereby the draught of a furnace may bei controlled or other fluid varies. C

Another ob]ect of the invention is to promay be operated by steam, water or air presln order that those skilled in the art tov which this invention appertains. nia-vlinderstand how to make and use the saine. I willA describe its construction in detail. referring by numerals to tlie accompanying Ydrawing` toi-ming' a part of this application,A in which v Fig. l. isa side elevation of a damper regulator embodying my improvement with a portion of the c vlinder broken away to show the piston therein.

is an enlarged sectional view of the controlling lever showing the manner of nioiuiting the weight thereon.

Fin'. 3. is an enlarged side connecting' member.

Fin'. 4, is a plan view of a bracket for al1- tachmentto the piston rod.

Fig. 5, is a similar view of another bracket for attachment to the cylinder. Finne is an enlarged vertical section of the valve with a portion of the valve lever thedainper for regulating and a part ofthe bracket illustrated in ele-v vation Y f a citizen of the United States, residing at Conshohocken, in the count-y of lliontgomery y ln carrying-outwmy invention as hereein- Y vbodied, 2 represents ashelf orplatform on -which is mounted a d-iapliragmfcasing 8 voperating the .cont-rolling leverl when the steam pressure rises above or falls below a predetermined pressurefwhich latter is.

rcgulatedby trheweights 5 and 6, the latter being' connected directly with the control lever while the former is'mounted uponthe pressure of the steam valvelever Z connected at its outer end lwith which encloses a suitablek diaphragnifmecl the control. lever as indicated at r 8 while its .inner end is pivoted as at Q'to a vsuitable vide an apparatus of this character which l The reference numerallQ denotes a cylinder in which is -niounted a pistol/183 having` pistonv rod'l connected therewith which turn is connectedwith aldamper by. any suitable orwell known means so that said damper will be openedand closed according Q'of which is connected tothe lever 7. 7

Cil

to the movements made by thev piston rod. 3:.

`The val'vcll liasan'inlet poi-t 341- to which leads a .pipe Brfroin a source of water supply undcr"pressure,"such as ya 'city water :main or angclcvatedtanlgfan outlet port A36 to which is connected a pipev 37 leading-to the lower partl of the cylinder 12 beneath y the piston yand an exhaust port 538 from which leadsthe pipe B9 to a point of disposal, such as a sewer or drain.

' The inlet port 34 and the exhaust vpoi'tr38 havcvalve seats 4() and. l-l respectively associated therewith and with these valve seats coacts a. valve plug 42 carried by the stem B2 Vwhereby either of. said -ports may be l closed or both left'open.

The vparts enumerated above are well known and 'form no part of my invention except in the' combination to be set forth in the claims and therefore these elements have not been setl forthV in detail. 1

In actual practice l have found it neccs- Y n sary to vai-v the weight upon the controlling elevation ol' a lever and in order to do this automatically .l provide a 'movableA weight 14 which is hungr upon the controlling lever by means ofV a wheel or wheels 15 slidably journalled beof a stilla connecting memberl or rod 17 the other end of said connecting member being pivoted to the arm 18 of the bell crank lever 19 which is pivoted as at 2O to some suitable portion of the apparatus and to the other arm of the bell crank lever is pivoted one end of a substantially'vertical connecting member or rod 21 the upper end thereof having a connector 22 in the form of a screw eye or its equivalent'which is loosely mounted on the screw 23 having threaded connection with the bracket 24 the latter beingl mountedupon the pis-'ton rod 13 and held in its desired adjustment by a set screw 25. This bracket includes a projection 26 with a hole 27 for the mounting of the guide rod 28 which latter slides through a hole 29 in the guide bracket 30 mounted upon the cylinder 12 and held in place by set screws 81. This arrangement ot brackets and guide rod prevent the piston rod 13 from rotating within the cylinder.

In operation when the steam in the boiler exceeds the predetermined pressure regulated by the weights 5 and G the controlling lever 4 will be raised Vand carry the lvalve lever 7 with it thus opening the inlet port and closing the exhaust port 38. The water under pressure will then pass through the pipe 37 to the cylinder and impart an upward movement to the piston rod 13 so that the bell crank lever 19 will be actuated through the medium of the vertical connecting'member 21 causing the weight 14 to be moved outward along the controlling lever lthrough the medium or" the horizontal connecting member 17 but whenbecause of a reduced pressure the controlling lever L and its connected valve lever 7 fall the inlet port 34' will be'closed and the exhaust port 38 opened. This will permit the Water in the cylinder to flow through the pipe 37, the exhaust port 38 and out through the pipe 39 to the drain permitting the piston 33 to move downward. As such action takes place the weight 14e-.will be gradually moved toward the inner end of the controlling lever to remove 'the additional weight.

Oi course Ido not wish to be limited to the exact details of constructiony as here-in shown Ias these maybe varied within the limits of the appended claim without departinter "from the spirit 0i' my invention.

Y I'Iavingthus fully described my invention, what I claim as new and useful is:Y

A damper regulator comprisingl in combination a controlling lever, means for raising said'lever, a cylinder, a piston rod operating therein,y a weight suspended from the controlling lever and movable lengthwise thereof, a bell cranklever, a stiff horizontal connecting member having one end attached lthrough for receiving the guide rod whereby the piston rod will be prevented `from rotating. Y

In testimony whereof', `I have hereunto affixed my signature.

FRANCIS E. COLLINS. 

